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GFS_PIO_TRUNCATE

GFS_PIO_TRUNCATE

Section: (3) Updated: 12 January 2005
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NAME

gfs_pio_truncate - truncate a file to a specified length  

SYNOPSIS

#include <gfarm/gfarm.h>

char *gfs_pio_truncate (GFS_File gf, file_offset_t length);  

DESCRIPTION

The gfs_pio_truncate() function truncates the regular file gf to the length bytes.

If the file was previously shorter than the length, it is extended, and the extended part is filled by zero bytes.

The file pointer is not changed.

You must specify GFS_FILE_MODE_WRITE in opening the file, because it must be open for writing.  

RETURN VALUES

NULL
The function terminated successfully.
GFARM_ERR_NO_MEMORY
Insufficient memory was available.
Others
An error except the above occurred. The reason is shown by its pointed strings.
 

SEE ALSO

gfs_pio_create(3), gfs_pio_open(3)


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUES
SEE ALSO

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Time: 21:46:49 GMT, April 16, 2011